//
//  VisitorLoginView.swift
//  sinaweibowj
//
//  Created by Macintosh on 15/12/14.
//  Copyright © 2015年 mactoinsh. All rights reserved.
//

import UIKit

//定义协议
@objc protocol VisitorLoginViewDelegate: NSObjectProtocol{
    
    //声明协议方法
    func userWillRegister()
    
    optional func userWillLogin()
    
}



class VisitorLoginView: UIView {
    
    //声明代理
    weak var visitorViewDelegate:VisitorLoginViewDelegate?
    //对外提供设置访客视图信息的方法
    func setupInfo(tipText:String,imageName:String?){
        tipLabel.text = tipText
        if let name = imageName {
            //不是首页
            circleView.image = UIImage(named:name)
            //隐藏大房子
            largeIcon.hidden = true
            //将视图移到最顶层
            bringSubviewToFront(circleView)
            
        }else {
            
            //开始动画
            startAnimation()
        }
    }
    
    private func startAnimation() {
        
        let anim = CABasicAnimation(keyPath: "transform.rotation")
        anim.repeatCount = MAXFLOAT
        anim.toValue = 2 * M_PI
        anim.duration = 20.0
        //当动画完毕或页面失去活跃状态动画不溢出图层
        anim.removedOnCompletion = false
        //添加动画
        circleView.layer.addAnimation(anim, forKey: nil)
        
    }
    
    
    override init(frame: CGRect) {
        
        super.init(frame: frame)
        setupUI()
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    //设置所有子视图
    private func setupUI(){
        
        addSubview(circleView)
        
        addSubview(backView)
        addSubview(largeIcon)
        addSubview(tipLabel)
        addSubview(registerBtn)
        addSubview(loginBrn)
        
        
        
        //使用自动布局
        for  subview in subviews {
            //使用手码添加约束需要屏蔽frame
            subview.translatesAutoresizingMaskIntoConstraints = false
        }
        
        addConstraint(NSLayoutConstraint(item: largeIcon, attribute: .CenterX, relatedBy: .Equal, toItem: self, attribute: .CenterX, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: largeIcon, attribute: .CenterY, relatedBy: .Equal, toItem: self, attribute: .CenterY, multiplier: 1, constant: -60))
        //添加圆圈的属性
        addConstraint(NSLayoutConstraint(item: circleView, attribute: .CenterX, relatedBy: .Equal, toItem: largeIcon, attribute: .CenterX, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: circleView, attribute: .CenterY, relatedBy: .Equal, toItem: largeIcon, attribute: .CenterY, multiplier: 1, constant: 0))
        
        addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .CenterX, relatedBy: .Equal, toItem: circleView, attribute: .CenterX, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Top, relatedBy: .Equal, toItem: circleView, attribute: .Bottom, multiplier: 1, constant: 16))
        addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 230))
        addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Height, relatedBy: .Equal, toItem: nil , attribute: .NotAnAttribute, multiplier: 1, constant: 40))
        
        //按钮的约束
        addConstraint(NSLayoutConstraint(item: loginBrn, attribute: .Left, relatedBy: .Equal, toItem: tipLabel, attribute: .Left, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: loginBrn, attribute: .Top, relatedBy: .Equal, toItem: tipLabel, attribute: .Bottom, multiplier: 1, constant: 20))
        
        addConstraint(NSLayoutConstraint(item: loginBrn, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 100))
        addConstraint(NSLayoutConstraint(item: loginBrn, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 35))
        
        addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Right, relatedBy: .Equal, toItem: tipLabel, attribute: .Right, multiplier: 1, constant: 0))
        addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Top, relatedBy: .Equal, toItem: tipLabel, attribute: .Bottom, multiplier: 1, constant: 20))
        
        addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 100))
        addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 35))
        
        //设置背景视图的约束 可视化的布局语言
        //metrics约束数值字典[String:数值]
        addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-0-[backView]-0-|", options: [], metrics: nil, views:["backView":backView]))
        addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[backView]-(-35)-[regBtn]", options: [], metrics: nil, views: ["backView":backView,"regBtn":registerBtn]))
    
        //设置视图的背景颜色
        backgroundColor = UIColor(white: 0.93, alpha: 1)
        
        //添加点击事件
        registerBtn.addTarget(self, action: "registerBtnDidClick", forControlEvents: .TouchUpInside)
        loginBrn.addTarget(self, action: "loginBtnDidClick", forControlEvents: .TouchUpInside)
        

        
    }
    
    
    //按钮的监听事件
    @objc private func loginBtnDidClick(){
        //代理调用协议方法
        visitorViewDelegate?.userWillLogin!()
    }
    
    @objc private func registerBtnDidClick() {
        
        visitorViewDelegate?.userWillRegister()
    }
    
    
    
    //懒加载所有子视图
    private lazy var backView:UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))
    private lazy var largeIcon:UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))
    private lazy var circleView:UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_image_smallicon"))
    private lazy var tipLabel:UILabel = {
        let l = UILabel()
        l.text = "关注一些人，回这里看看有什么惊喜,关注一些人，回这里看看有什么惊喜"
        l.textColor = UIColor.darkGrayColor()
        l.textAlignment = .Center
        l.font = UIFont.systemFontOfSize(14)
        l.numberOfLines = 0
        l.sizeToFit()
        return l
    }()
    
    private lazy var registerBtn: UIButton = {
        
        let btn = UIButton()
        btn.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: .Normal)
        btn.setTitle("注册", forState: .Normal)
        btn.titleLabel?.font = UIFont.systemFontOfSize(15)
        btn.setTitleColor(themeColor, forState: .Normal)
        btn.sizeToFit()
        return btn
        
    }()
    
    private lazy var loginBrn: UIButton = {
        
        let btn = UIButton()
        btn.setBackgroundImage(UIImage(named:"common_button_white_disable"), forState: .Normal)
        btn.setTitle("登录", forState: .Normal)
        btn.titleLabel?.font = UIFont.systemFontOfSize(15)
        btn.setTitleColor(UIColor.darkGrayColor(), forState: .Normal)
        btn.sizeToFit()
        return btn
    }()
    
}

